Window sash operating mechanism



Aug.` 18, 1953 l Jfw. SIGNORE 2,649,301

WINDOW SASH OPERATING MECHANISM med .my 15, 195o- Fls. l.

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i 15 2.4/ if *l 3 f f@ f7 1: 1f- 7.9 *lo 74 i 1 uwen-ron E Q 5 d E A WM yn/ ATTORNEY Patented Aug. 18, 1953 UNITED s'rA'rss ATENT orrlce WINDOW'SASH OPERATING MECHANISM James W. Signore, Ellicottville, N. Y.

Application July 15, 1950, Serial No. 174,057

This invention relates generally to windows but more particularly to certain new and useful improvements in the sash operating mechanism therefor.

It has for one of its objects to provide a mechanism of this character which is so designed land constructed as to facilitate the raising and lowering of the sash and which dispenses with the use of the usual cords and weights and locking latches.

Another object of the invention is to provide a sash operating mechanism which is simple and inexpensive in construction and which can be easily installed.

A still further object is to provide latching mean-s governed by the sash operating mechanism for automatically latching the upper' sash in a locked position when the lower sash is in its lowered position.

Other features of the invention reside in the construction and arrangement of parts hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure l is a sectional inside face view of a window frame showing my improved sash operating and latching mechanism. Figure 2 is a sectional side view thereof taken substantially in the plane of line 2 2, Figure 1. Figure 3 is a horizontal section taken on line 3 3, Figure l. L

Similar characters of reference indicate corresponding parts throughout the several views.

By way of example, my sash raising and lowering mechanism has been shown in connection with the lower sash II) of a window frame Il, while the latching means is operativelyassociated with the upper sash I2 of the window.

Secured by attaching flanges I3 to opposite -sides of the lower sash I are depending channellike bars I4 which are provided with forwardlyfacing gear racks l5 extending below the sill IE of the window frame. A sectional operating shaft I'I, I8 is disposed horizontally between and journaled at its ends in the opposite sides of the window frame below the sill and a depending bracket I9 is secured to the latter for supporting the shaft medially thereon. Pinions 20 are fixed on this shaft in meshing engagement with the companion gear racks, so that as the shaft is turned in one direction or the other the sash is accordingly uniformly raised or lowered. It will be noted that each shaft section Il, I8 has a pinion xed thereto and that the sections are detachably connected by a set screw 2|, so that by varying the length of one or both of the shaft-sections 4 Claims. (Cl. 268-132) engagement with the upper sash I2. This bolt ifs,`

the mechanism is readily adaptable to windows of different widths.

For the purpose of actuating the operating-` 2li formed on the bracket I9. A worm 25 xedY on this crank shaft meshes with a worm wheel 26 secured to the operating shaft. Upon turning the crank in one direction or the other, the racks i5 are accordingly propelled upward or downwardly to raise or lower the sash I0 and at the same time effectually retain it in a desired position of adjustment.

Attached at its lower end, as indicated at 21, to one of the rack bars I4 and adapted to move therewith relative to the window frame II in a corresponding upright slot 28 formed therein, is an upright post 2S for actuating a latching bolt 3@ to and from an operative latching position in guided for horizontal movement in an opening 3| formed in the window frame and in the closed position of both the upper and lower sash it engages a recess 32 provided in the opposing side edge of the upper sash, as shown by full lines in Figure l. Pivoted at 33 to a bracket 34 secured to the upright portion of the window frame is a vertically swinging bolt-actuating arm or lever 35 to the lower end of which the bolt 30 is pivotally joined. Adjacent its fulcruming end this actuating arm has a tappet lug 36 projecting therefrom having a slot 3l therein through which the upper end of the post 29 extends. A spring 38 is applied to this bolt between the arm 35 and an abutting shoulder formed in the adjoining portion of the window frame which tends to urge the bolt automatically to its unlatched position as the lower sash is raised. An adjusting stop element or nut 39 on the post above the arm-lug is adapted, during the lowering movement of the lower sash, to abut the top face of the arm-lug and accordingly cause the bolt to be projected into latching engagement with the upper sash, as shown by full lines in such gure. By this construction, when the lower sash is opened by operating the crank 22, the latching bolt 3U is withdrawn from the upper sash to permit it to be opened, if desired. When the lower sash is lowered to its closed position, assuming the upper sash to have been previously closed, the bolt is automatically actuated to latch such upper sash, it being understood that the raising and lowering of the lower sash automatically governs the unlatching and latchng movements of the bolt 30.

I claim as my invention: l

1. An operating mechanism comprising the combination of a window frame having upper and lower sash guided therein, of a rack bar secured to the lower sash, an operating shaft supported in the window frame and having a pinion thereon meshing with said rack bar, a latching bolt for theupper sashv including, aspring.; for normally urging it to itsunlatched position; andmeans releasably connecting said rack bar with said bolt for projecting the latter to its latchingf;

position in response to the movement of the lower sash to its closed position, saidmeans beingre'- leasable from said bolt when suchzlowen sashisf raised to cause the bolt to be spring-urged to its unlatched position.

2. An operating mechanism compris-ing the combination of a window frame having upper and lower sash guided therein, of a rack. bar secured to the lower sash, an operatingA shaft sup.- ported in the window frame and having a pinion thereon meshing with said rack` bar, a latching bolt for the upper sash including a spring for normally urging it to its unlatched position,v a member connected at its lower end to said rackr bar and extending upwardly therefrom within the frame, and an operative connection between the upper end of said member and said bolt for projecting the latter to its latching position in response to the movement of the lower sash to its closed position;

3. An operating mechanism comprising the combination of a window frame having upper and lower sash guided therein, ofna rack bar secured to the lower sash, an operating shaft supported in the window frame and having a pinion thereon meshing with said rack bara latching bolt for the upper sash including a spring for normally. urging it `to its unlatched, position, a member connected at itslower end to said rack bar and extending upwardly therefrom within the frame, and a lever fulcrumed on the window frame including an arm operatively connected to said bolt and a tappet lug in operative relation with said rack bar member for actuation thereby to a bolt-latching position in response to the movement of the lower sash to its closed position.

4. Anl operating mechanism comprising the combination of al window. frame; having upper and lower sash -guided therein, of a rack bar secured to the lower sash, an operating shaft supportedin the window frame and having a pinion thereon meshingy with said rack bar, a latching boltfon-theupper sash including a spring for normally urging it to its unlatched position, a member connected'at its lower end to said rack bar. and, extending upwardly therefrom within the frame and having a stop element thereon adjacent its upper end, anda, lever fulcrumedon the window frameincluding an arm operatively connected to said bolt' and'a tappet lug having an opening therein through whichV saidVV rack; barti member freely extends and against which lug said stop element is adapted to abut toV actuate said lever in a direction toV project the bolt' to its latching position in response to the movementl of the lower sash to its closed position.

JAMESY W. SIGNORE,

References Cited intheA lef of? this patentv UNITED STATES BTENTS Number Name Date 594,553 Pearson a Nov. 30, 1897 596,161 Hill; Dec. 28, 189,7 '757,249k Barnard.A Apr. 12,',19045 '759,508 Feder a 1 May10,, 19 04.V 886,108 Allen V- Apr.,281908'1 1,134,572 Yardley.y Apr; 6; 1915 1,536,457,V Schlesingerl et a-l.` May; 5, 1925.I 

